Class Path not working

C:\CollisionDetectionKit_v15\com\coreyoneil\collision\CollisionList.as, Line 1 5001: The name of package** ‘com.coreyoneil.collision’** does not reflect the location of this file. Please change the package definition’s name inside this file, or move the file. C:\CollisionDetectionKit_v15\com\coreyoneil\collision\CollisionList.as

I don’t see why it can’t find the correct file path?